According to data released by Iran's central bank, the country's annual inflation rate stood at 10.8% in the past Iranian calendar year, ended 20 March, 2010, compared to 25.4% for the March 2008-2009 year, Meed has reported. The average inflation rate from March 2009-10 stood at 11.3% compared to 13.5% in the previous year, the data showed.